package com.qinghua.blog.handler;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;


//自定义异常处理器
@ControllerAdvice
public class ControllerExceptionHandler {

    private final Logger logger= LoggerFactory.getLogger(this.getClass());

    @ExceptionHandler(Exception.class)
    public ModelAndView exceptionHandler(HttpServletRequest request,Exception e) throws Exception{

        logger.error("Request URL : {}, Exception : {}",request.getRequestURL(),e);
        //接受带注解的异常如果异常带有状态码交给spring处理
        if(AnnotationUtils.findAnnotation(e.getClass(), ResponseStatus.class)!=null){
           throw e;
        }

        //返回到定制错误页面
        ModelAndView mv=new ModelAndView();
        mv.addObject("url",request.getRequestURL());
        mv.addObject("exception",e);
        mv.setViewName("error/error");
        return mv;

    }
}
